ludowici



Jan. 21, 1936. w. LUDQWICI 2,028,228

I ROOFING TILE Filed April 3, 1953 3 Sheets-Sheet 2 E 915 Fig.6 I a (1 Ely-Z VKLudow/ci.

W. LUDOWlCl ROOFING TILE Jan. 21, 1936.

Filed April 3, 1933 3 Sheets-Shget 3 Fig. 7.

hVE/VTQP I W.LUDOWIC! 7 ww f Patented Jan. 21, 1936 Application Ap'riL3; 1933, Serial No. 6645218 Ini'Germany Jul 4, 1932:

- invention relates to an improvedi roofing tile; and; has for' its obj'ect; to providea roofing tile-with special-.dovtailingsothataroof covered with these tiles' isrendered tight againstwater,-

; dirt and'rligh't and moreoversueh' amewwnereby: inaccuracyiin the placing-got the lath's on which theltiles are hung; will not affect the tightness of theroof. i

The tiles are hung side by side in rows: andone ufider=the other, so that'in every setof'four'tiles therewill'be four corners over1apping',and accordingto the invention means are provided whereby at such a; meeting of the fourcorners-' hereinafter termed. a 4- tile corner -one tile shall always: overlap another and thatthe overlappingltile sha1'ldovetai1 with at least one tile below: Furthermore, the water running down the watertroughbetween two adjacent tiles is made to run ofi outside the 4 tile corner; In s earryin'gr out this inventionthe water is made to run off as far as possibleabove the'4 tile corner? insuch a way that thewater passes under the curvature of the overlapping tile out of the water trough on to thefiee tile surface. At; the same time the running ofi edge in the dovetailing ispreferablyimade: with: a sh-arp 'edge to allow a more-free 'run for the water, and" to"make-the separation as eflicient. as possible-and to prevent asfar as *possib'lethe snow, dust etci, from -fstrik'-* 3o: ingtithrou'gh; The lower opening :ofth'e d'ovetailing at the 4 tile corner isarran'ged so that itileads out in the opposite direction-to the covelihg."

The actual separation of thedovetailingag ainst Phi a thetwater is arranged for in the simplest way by ai -cross 'rib in the 'side' dovetailingf whiol'i rests" against a similar cross ribbent-sideways in a rih provided onthe-underside of the tile above, whicl-i rib ii-ts for the wholei of itslength nside the 44%- side dovetailingand has a; gap to tans-theme ribs-- The:- important advantage of thiscQmpIetaseparatibm lies in r the main in" the fact that it} permits the construction of the 4 tiIecGrnr ii-LH- out regardcto the run of the water and so that it} is: :'safe" against drifting; snow; dirt; and is light tight;

v The invention will rbe more clearliy understood with-reference" tothe accompanying drawings 510: whionillustrate by way ofexample two-forms of- Fig. 2; is a view" of Fig 1 when turned oveif about itsrig'ht haind Iongi-tudinal edge, and' shows theiunderheath of the tile;

Fig. '3: a cross section alon'g the line A-B of Figfvlj;

Fig: 4 -is a cross'seotion along the line E"-F of Fig; 5? is a 'rig-ht hand side elevation of Fig. 2;"

Fig. fi zisia-longitudinal crosssection of Fig. 1

. alonggthe line C 13; 10"

Fig. '7 is a cross section through the"4 tile corner? along; azlihevparallel: to the eaves of the roof;

Figwa is: a view from; underneath." of the two uppen-tiies: of a 4 tile corner"; 15:

Fig.1 9 isaztoptview of a; til'eaocording to the inventionwithc'an .alternative form: of dovetailing;

Fig. 10 is ar-section' along the line Ill-Ill of Fig; 9'; and

Fig-g: 11i'is: aiperspective view of part of the 4' 201 tilecomer withthe uppermoststil'e removed.

Theidovetailing of a tile P comprises ribsa'aiid beomthe sideedge, i; e; left handiedge of'Fig; I, of the upper surface; and continued: along' the upper edge at a" andb where they form the up 25') perdovetaxiling. On theunde'rl surface of the tile,- ife. aizthecright-hand: side of Fig. land seenron: the lefit-hand side -of-Fig. 2,is a corresponding. rib c, which, when: the tiles are laid together, fits into the groove between the ribs a andb of the adjacent underneath tile. Parallel with the rib crisia'rible (Fi'gs'..2 and?) whiohfis' sharp edged extends along the length of thetile to form the'groove d with which the rib a on the overlapping tile'co-operates'as shOWn'in Fig. '7. Along the"l'eft"hand-edge'ofFig; 2, i; e. on theu nd'er neatif of the'tile; is a'rib-f'which is continued along he lower edge as f" andibrms', when the tile is laid, a c0n'1plete enclosure 7 Also on the underside of-"the tile-at the bot- 40 tom end is a :cross :ri'b" g (Figs; 2; 5-; and" 6) having-'ani'ofisetg against. which the groove d and its ribs '0. and? e terminate At top-Hendtof: the tile-also on the uii-- derside thereofltis aftransverseprojeotionh (Figs. 2,: 5, and'y6 bwwhichthe tile'ishung, an eyelet h" near. the 1 lower "end -of the tile being provided for; fastening the" til'e 'tothe laths'. Finally; there areatthelower: right edg'e" (se'e- 2J recesses and' mea-ns for"dovetailing the.4"tile corner, as hereafter described:

The separation. of r the Watercourse on the side doivetailingl and the leading 'i of the" water" away fromr'the 1"41 tilecorner isr effectedi bymeans of therib: i (Eigstrl ant-i 6 acrossthe groove formed: 66?

side of the top face of said surface, spaced ribs along the opposite longitudinal side of said top face and continued along one transverse side of the tile, corresponding ribs spaced apart along the opposite sides of the underneath face of said main surface whereby four of such tiles may be laid together in overlapping relation, oppositely inclined cross ribs connecting the spaced longitudinal ribs on both faces of the tile, the cross rib on the top face extending from one edge of a 7 slot in the inner longitudinal rib of said top face inner rib on the under face being ofiset outwardly adjacent the inner longitudinal rib on the under face, said longitudinal rib extendingto said offset portion, the end of the transverse rib on the under face being adapted to abut against said curved portion on the tile next below.

7. A roofing tile according to claim including a raised water-runway between the spaced longitudinal ribs on the top face and a sharp edged outlet to said runway leading through said slot in the inner longitudinal rib of said top face to the main surface of the tile.

8. A roofing tile according to claim 5, including a raised water-runway between the spaced longitudinal ribs on the top face, and a stepped outlet to said runway leading through said slot in the inner longitudinal rib to the main surface of the tile.

9. A roofing tile according to claim 5, including a raised water-runway between the spaced longitudinal ribs on the top face, and a stepped, sharp-edged outlet to said runway leading through said slot in the inner longitudinal rib to the main surface of the tile.

10. A roofing tile according to claim 5, having recesses in the inner transverse ribs on both faces of the tile, the recess in the rib on the top face being disposed at the end of the rib, and the recess in the rib on the underneath face being disposed adjacent the inner longitudinal rib of said underneath face, the said tile including projections adjacent the outer end of the inner transverse rib of the underneath face for cooperating with said recesses of adjacent tiles when laid, whereby adjustment is provided for.

11. A roofing tile comprising a main surface with a curved raised portion along one longitudinal side of the top face of said surface, spaced ribs along the opposite longitudinal side of said top face and continued along one transverse side of the tile, corresponding ribs spaced apart along the opposite sides of the underneath face of said main surface whereby four of such tiles may be laid together in overlapping relation, cross ribs connecting the spaced longitudinal ribs on both faces of the tile, the cross rib on the top face extending from one edge of a slot in the inner longitudinal rib of said top face and the cross rib on the underneath face extending from the opposite edge of a corresponding slot in the inner longitudinal rib of the underneath face, the inner transverse rib on the underface being offset outwardly at the end thereof adjacent the corthe inner transverse rib on the under face of the adjoining tile so as to continue said inner transverse rib in a straight line.

12. A roofing tile comprising a main surface with a curved raised portion along one longitudinal side of the top face of said surface, spaced ribs along the opposite longitudinal side of said top face and continued along one transverse side of the tile, corresponding ribs spaced apart along the opposite sides of the underneath face of said .main surface whereby four of such tiles may be laid together in overlapping relation, cross ribs connecting the spaced longitudinal ribs on both faces of the tile, the cross rib on the top face extending from oneedge of a slot in the inner longitudinal rib of said top face and the cross rib on the underneath face extending from the opposite edge of a corresponding slot in the inner longitudinal rib of the underneath face, a curved portion between the inner longitudinal and transverse ribs on the top face, the inner transverse rib on the top face having an inwardly directed offset at its outer end, an end piece on the corner of the tile diagonally opposite said offset, said end piece being of such a shape as to close completely over the corresponding offset on the tile next below, the inner transverse rib on the underface adjacent the corresponding inner longitudinal rib, said longitudinal rib extending to said last mentioned offset, the opposite end of the transverse rib on the underface being adapted to abut against the said curved portion of the tile next below, and a rib like projection adjacent the said opposite end of said inner transverse rib, said rib-like projection being adapted to co-operate with the offset of the inner transverse rib of the adjoining tile-so as to continue said inner transverse rib in a straight line.

- WILHELM LUDOWICI.

Jan. 21, 1936.

H. P. LUHN MINIATURE BUILDING S TRUCTURE Filed Jan. 24, 1954 INVENTOR HA/V5 P. LUH/V q fiuy Hl ATTORNEYS 

